KR102264134B1 - Roll tape cutter - Google Patents

Abstract

The present invention relates to a tape cutting machine with a paper tube pressure-resistant brake lever, which has a contact or non-contact brake lever contacting the inner circumferential surface of a paper tube around which roll tape is wound, to release or unrelease the roll tape by gripping force using fingers, thereby quickly and finely adjusting breaking time and power, makes the braking stroke between the brake lever and the inner circumferential surface of the paper tube constant regardless of the degree of tape consumption, thereby remaining the sensitivity of the hand to braking constant and reducing the work fatigue by that much, and can prevent arbitrary loosening of the tape through the application of a torsion spring for constantly pressing the brake lever, thereby ensuring precision taping (or boxing) workability and reducing hand fatigue by that much. The tape cutting machine comprises: a body including a drum unit on which roll tape is mounted, a guide unit for guiding an end of the tape, and a first mounting unit provided at an end of the guide unit; and a cutting means coupled to the first mounting unit and including a cutting blade. The drum unit includes: a fixing segmented part having a front-end shaft installation part; and a brake lever having a front-end rotation shaft hinged to the front-end shaft installation part to press the inside of the paper tube of the roll tape mounted on the drum unit.

Description

Tape cutter equipped with branch tube pressure-resistant brake lever {ROLL TAPE CUTTER}

The present invention relates to a tape cutting machine having a paper tube pressure-resistant brake lever, wherein the tape is wound on the inner peripheral surface of a paper tube in order to release or unrelease a roll tape by gripping force using a finger. The braking time and power can be adjusted quickly and finely by providing a contact or non-contact brake lever, and the braking sensitivity between the brake lever and the inner peripheral surface of the branch tube is constant, regardless of the degree of tape consumption, so that the braking sensitivity of the hand is maintained constant. It also reduces work fatigue by that much, and prevents arbitrary loosening of the tape through the application of a torsion spring for constant pressurization of the brake lever to secure precision taping (or boxing) workability, while also reducing hand fatigue by that much. It is about a tape cutter that makes it possible.

In general, the box in which the goods are accommodated is sealed and transported through an adhesive tape, and the sealing of the box is performed manually by a roll-type adhesive tape cutter.

A conventional tape cutter generally has a main body in which an adhesive tape in the form of a roll in which the tape is wound on a paper tube is rotatably mounted, a guide part for making the tape adhere to the surface of the box paper when the main body is moved, and the front end of the main body is exposed It is provided so as to include a cutting blade for cutting the tape attached to the box when rotating the main body.

When packaging the box, the tape cutter attaches the end of the tape to the starting position of the cutout of the box and then moves the main body along the cutout line. As the tape is released, the guide part presses the tape to attach the tape to the cutout line.

After the tape is adhered, the operator separates the main body from the box by a predetermined distance and then rotates the main body around the guide part that is in close contact with the surface of the tape. Then, the cutting blade presses the tape to make the cut, and a separate cutter knife is used. The tape can be easily attached and cut without having to do it, making the taping process convenient and shortening the working time.

However, in the conventional tape cutter, since the roll tape mounted on the main body is not separately fixed and is freely rotatable, the tape is excessively loosened during operation or the roll tape is rotated during non-use, so that the tape is arbitrarily released.

In addition, since the conventional tape cutter has a sharp cutting blade protruding from the tip of the guide part, it is easy to get injured by the cutting blade when unscrewing the tape by hand or when handling the tape cutter while not in use. There is a problem.

For reference, as a prior art related to such a tape cutting machine, there are Patent Publication No. 10-2015-0144762, Patent Publication No. 10-2016-0014424, and Utility Model Registration No. 20-0462320.

Accordingly, the present invention has been devised to solve the above problems,

In order to release or release the tape by gripping force using the fingers, a contact or non-contact brake lever in contact with the inner circumferential surface of the paper tube on which the tape is wound is provided so that the braking time and power can be adjusted quickly and minutely. , By applying a torsion spring for constant pressurization of the brake lever, hand fatigue can be reduced even after long-term use, and a cutting blade protective cover coupled forward and backward on the upper part of the cutting blade is provided, so that injuries caused by the cutting blade when not in use It is an object of the present invention to provide a tape cutter capable of easily cutting the tape only when necessary, while preventing the like, and allowing the tape to be more easily attached with a cutting blade protective cover.

In order to achieve the above object, the tape cutting machine according to the present invention,

a main body including a drum unit on which the roll tape is mounted, a guide unit guiding the end of the tape, and a first mounting unit provided at the end of the guide unit;

Cutting means including a cutting blade coupled to the first mounting unit; including,

The drum unit includes a fixed powder having a front-end shaft and a brake lever that has a front-end rotation shaft hinged to the shaft and allows internal pressure of the roll tape mounted on the drum against the paper tube. characterized.

And in the tape cutter according to the present invention,

The fixed powder includes a rear end side guide groove,

The brake lever includes a rear end guide pin that is slidably coupled to the guide groove,

The drum unit may include a first elastic body that elastically supports the brake lever to rotate to the outside.

Also in the tape cutting machine according to the present invention,

The drum part may include a separation preventing part protruding from an outer surface of the brake lever.

In addition, in the tape cutter according to the present invention,

The main body includes a second mounting portion provided on the upper portion of the first mounting portion,

The cutting means may include a cutting blade protection cover coupled back and forth in the second mounting unit, and a second elastic body provided in the second mounting unit to elastically support the cutting blade protection cover to advance.

The tape cutting machine according to the present invention,

As the brake lever of the drum part is provided to be rotatable in both internal and external directions of the fixed powder, the brake lever is easily pressed with a grip to prevent the roll tape from being unintentionally rotated and loosened while the paper tube of the roll tape is pressed, By using the brake lever, it is possible to quickly and finely adjust the break time and power for the roll tape.

Furthermore, the torsion spring allows the brake lever to pressurize the branch tube at all times, reducing hand fatigue even after long-time use.

By pushing the brake lever inward only when necessary, it makes it easier to change the roll tape.

It is possible to prevent the roll tape from being unintentionally separated and separated on the drum part through the separation preventing part of the brake lever,

A cutting blade protection cover that covers the cutting blade is provided to prevent injuries caused by the cutting blade while not in use, and the cutting blade protection cover is coupled so that it can move back and forth so that the cutting blade protection cover moves back naturally when cutting the tape. This makes tape cutting easier and at the same time, the automatic withdrawal of the cutting blade protective cover after tape cutting makes the tape attachment more convenient and neat by keeping the end of the tape in close contact with the attachment surface.

It is convenient to reuse the tape because the end of the tape is stably positioned on the guide roller, and there is no need to arbitrarily fix the roll tape, thereby reducing wrist fatigue.

1 is a side view of a tape cutter according to the present invention;
Figure 2 is a sample photograph of the tape cutter according to the present invention.
Figure 3 is an enlarged view of the main part for explaining the cover roller according to the present invention.

The present invention is intended to be described in detail in the text of the embodiment (態樣, aspect) (or embodiments) can be applied to various changes and can have various forms. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numerals, particularly the tens digit and the one digit, or the tens digit, the one digit, and the same alphabetic reference numerals indicate members having the same or similar functions, and, unless otherwise specified, each of the figures in the drawings. The member indicated by the reference sign may be understood as a member conforming to these standards.

In addition, in each drawing, components are expressed in exaggeratedly large (or thick) or small (or thin) in size or thickness in consideration of convenience of understanding, or simplified, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as comprises or consists of are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification will be referred to only to distinguish that they are different components, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention are may not match.

In describing the tape cutter according to the present invention, for convenience, if an approximate direction standard that is not strict is specified with reference to FIG. 1 , the direction in which gravity acts while facing the part where the cutting blade 21 is mounted is downward. In the detailed description and claims of the invention related to other drawings, unless otherwise specified, directions are specified and described in accordance with this standard.

Hereinafter, a tape cutter according to the present invention will be described with reference to the accompanying drawings.

A tape cutter having a cutting blade protective cover according to the present invention, as shown in FIGS. 1 and 2 , largely includes a main body 10 and a cutting means 20 .

The main body 10 includes a drum part 11 to which the roll tape T is mounted, a guide part 12 for guiding the end of the tape Tb, and a first mounting part provided at the end of the guide part 12 . (13) and a second mounting portion 14 provided on the first mounting portion (13).

In the main body 10, a circular rotation guide 11A protrudes from the upper outer side of the cylindrical drum 11, and a roll tape T is fitted between the drum 11 and the rotation guide 11A.

The main body 10 is provided with a guide portion 12 extending forwardly connected in a tangential form with respect to the rotation guide 11A, and the first and second mounting portions 13 and 13 at the ends of the guide portion 12 ( 14) is provided.

The first and second mounting parts 13 and 14 have a groove shape of a predetermined depth with an open front surface, and a cutting blade 21 is fitted to the first mounting part 13 and coupled thereto, and the second mounting part 14 has a cutting edge. The blade protection cover 22 is fitted and slidably coupled.

In addition, a guide roller 12R rotatably coupled to the lower portion of the tip of the guide part 12 is provided to support the non-adhesive surface of the tape Tb when the tape Tb is released, and the tape Tb is in a taut state. to keep

In addition, the guide protrusions 12A on the left and right sides are provided to protrude inward at the lower portion of the guide roller 12R, so that the end of the tape Tb does not deviate from the guide roller 12R, so that the end of the tape Tb is easily grasped. do.

The guide protrusion 12A has a downwardly convex streamline shape to minimize the contact area with the adhesive surface of the tape Tb to prevent the tape Tb from being adhered to the guide protrusion 12A.

The drum unit 11 includes a fixed powder 111 having a front end side shaft tongue portion 111a and a rear end side guide groove 111b, a front end side rotation shaft 112a hinged to the shaft tongue portion 111a, and a brake lever 112 having a rear end guide pin 112b that is slidably coupled to the guide groove 111b;

The guide groove 111b is formed so that the guide pin 112b can rotate in both inner and outer directions of the fixed powder 111, and functions as a roll tape fixing means when the brake lever 112 rotates outward. And when the brake lever 112 rotates inward, it is characterized in that it functions as a roll tape detachment means.

The fixed powder 111 and the brake lever 112 are connected to each other in a cylindrical shape to form the drum part 11, and the rotation shaft of the brake lever 112 is located on the shaft and tongue part 111a of the fixed powder 111 ( 112a) is fitted and shaft-coupled, and the guide pin 112b of the brake lever 112 is fitted into the guide groove 111b of the fixed powder 111 to be slidably coupled.

The guide groove (111b) is formed to have a predetermined length in a shape that is staggered in and out with respect to the circumferential direction of the drum part (11).

At this time, the guide groove 111b is connected to have an acute angle inward from the rear end of the fixed powder 111 .

The brake lever 112 is rotated in and out using a finger when the user holds the main body 10, so that the roll tape T mounted on the drum unit 11 has By enabling internal compression, it is possible to quickly fine-tune the release or release operation of the roll tape T, allowing adjustment of braking time and power.

Here, in the present specification and claims, the 'branch tube' (Ta) on which the tape (Tb) is wound will only refer to a general-purpose name in the industry suitable for its use, and the present invention is made by the material (paper, synthetic resin, etc.) This should not be limited.

In particular, in the present invention, even if the thickness of the roll tape T is reduced due to the use of the tape Tb, the fixing to the roll tape T is continuously made without a change in the position of the roll tape T.

That is, in the present invention, since the pressure for fixing the roll tape T is applied to the inner circumferential surface of the paper tube Ta, the pressure range of the brake lever 112, that is, the rotation of the brake lever 112, regardless of the thickness of the tape Tb. Since the angle is always constant, the braking stroke is constant so that the hand's braking sensitivity is kept constant while reducing work fatigue.

In addition, the drum unit 11 further includes a first elastic body for elastically supporting the brake lever 112 to rotate to the outside.

As the first elastic body, it can be seen that the torsion spring 113 is mounted on the axial tongue portion 111a and exerts an elastic force in the direction opposite to the torsion.

Therefore, even if you put your finger into the hollow of the drum 11 and hold the body 10, the brake lever 112 is lifted outward (counterclockwise in the drawing) by the elastic force of the torsion spring 113 and rotates. is pressed at all times, and accordingly, the brake lever 112 presses the paper tube Ta forming the inner circumferential surface of the roll tape T to the outside so that the brake lever 112 freely rotates on the drum unit 11 while the tape (Tb) is prevented from unintentionally loosening.

In addition, in the present invention, since the brake lever 112 is elastically supported so as to always rotate outward within the range of the guide groove 111b, the elastic force of the torsion spring 113 only when the end of the tape Tb is pulled. The tape Tb is unwound as the paper tube Ta rotates due to the action of an external force exceeding the .

In addition, when the roll tape T needs to be replaced by using the tape Tb, if the brake lever 112 is rotated by pressing the brake lever 112 inward (clockwise in the drawing), the pressure on the branch pipe Ta is reduced. As it is released, the roll tape (T) can be easily removed from the drum unit (11), and even when a new roll tape (T) is mounted, the paper tube (Ta) is easily attached to the drum unit (11) by pressing the brake lever (112). can be inserted

In addition, the drum unit 11 further includes a stopper 111c protruding from the inner circumferential surface of the lower portion of the guide groove 111 so that the guide pin 112b can be engaged.

The stopper 111c prevents the brake lever 112 from rotating back to its original position when the user rotates the brake lever 112 inward to replace the roll tape T, and the roll tape T makes replacement work easier.

Furthermore, the drum part 11 includes a separation preventing part 112c protruding from the outer surface of the brake lever 112 .

The separation preventing part 112c protrudes in the radial direction of the drum part 11 from one side of both side end surfaces of the brake lever 112 in the direction in which the main body 10 is opened. As the lever 112 is rotated outwardly by the torsion spring 113, one side of the branch pipe Ta is caught by the separation prevention part 112c, and the roll tape T is pulled out from the drum part 11. to prevent

When the roll tape T is replaced by pressing the brake lever 112 inward, the separation preventing part 112c serves as a handle for pulling the brake lever 112 inward.

In addition, the separation preventing part 112c protrudes in the direction of one end of the brake lever 112, so that the tape attachment operation can be performed while holding the tape cutter more easily.

The present invention having such a configuration is provided with a contact or non-contact brake lever 112 in contact with the inner circumferential surface of the paper tube Ta on which the tape Tb is wound, so that it is possible to quickly and finely adjust the braking time and power, and the tape Tb Regardless of the degree of consumption, the braking stroke between the brake lever 112 and the inner circumferential surface of the branch tube Tb is constant, so that the braking sensitivity of the hand is kept constant and the work fatigue is reduced by that amount, and the constant pressure of the brake lever 112 is also applied. Through the application of the torsion spring 113 for the purpose of preventing arbitrary loosening of the tape Tb, precision taping (or boxing) workability is secured, and in addition, hand fatigue can be reduced by that much.

Next, the cutting means 20 includes a cutting blade 21 coupled to the first mounting part 13, a cutting blade protective cover 22 coupled back and forth in the second mounting part 14, and the second mounting part ( 14) provided in the cutting means 20 including a second elastic body for elastically supporting the cutting blade protective cover 22 to advance; includes.

The cutting blade 21 is a saw-tooth-shaped blade portion formed at a tip portion, is inserted into the first mounting portion 13, is coupled to be exposed to the front of the guide portion 12, and is used to cut the tape Tb.

The cutting blade protective cover 22 is fitted and slidingly coupled to the second mounting portion 14 while covering the upper portion of the cutting blade 21 . At this time, the front end of the cutting blade protective cover 22 is larger than the cutting blade 21 . coupled to protrude further forward.

The second elastic body elastically supports the cutting blade protective cover 22 so that it is drawn forward. In the drawing, the second elastic body is inserted into a coupling protrusion (not shown) of the cutting blade protective cover 22 to exert an elastic force in the opposite direction to compression. The spring 23 can be checked.

The present invention protects the cutting blade protective cover 22 completely covering the cutting blade 21 by the elastic force of the compression spring 23 when the tape cutter is not used or when the tape Tb is unwound. Therefore, it is possible to prevent the occurrence of injuries and the like caused by the cutting blade 21 .

In addition, when the tape Tb is cut by rotating the main body 10 with the guide part 12 as a starting point after attaching the tape Tb, the cutting blade protective cover 22 is naturally formed by the pressure of the tape Tb. The tape Tb can be easily cut with the cutting blade 21 which is retracted and retracted, and thus is exposed.

In addition, when the external force applied to the cutting blade protection cover 22 is relieved after the tape Tb is cut, the cutting blade protection cover 22 is pulled out again by the compression spring 23. At this time, the cutting blade protection cover 22 By pressing the non-adhesive surface of the tape Tb attached to the box, the end of the attached tape Tb is pressed so that the tape Tb is completely attached to the attachment surface of the box or the like.

That is, the cutting blade protective cover 22 of the present invention has a short forward and backward stroke, and the strength of the compression spring 23 is strong, so that it can immediately advance after cutting the tape Tb, so that it can be attached to an object (box, etc.) The end of one tape Tb is completely attached to the object to be attached.

At this time, the elastic force of the compression spring 23 that supports the cutting blade protection cover 22 and the forward and backward stroke of the cutting blade protection cover 22 are,

For cutting the tape (Tb) by the toothed cutting blade (21),

When the cutting operation rotates close to the attachment object (box, etc.) around the cutting blade (Tb), the cutting blade protective cover 22 can move backward by the contact pressure with the end of the attached tape (Tb) while cutting It is preferable that the cutting blade protective cover 22 moves forward again immediately after that, so that the end of the tape Tb attached to the object to be attached is in close contact with it so that it is completely attached.

On the other hand, the present invention, as shown in Figure 3, while supplementing the protection of the cutting blade 21 using the cutting blade protective cover 22, the tape (Tb) after cutting the tape (Tb) to facilitate the finishing operation of the tape (Tb). It further includes a cover roller 221 .

First, the cutting blade protective cover 22 is formed with a roller mounting groove (not shown) having an open front at the front end, and on both sidewalls of the roller mounting groove in the front and rear longitudinal direction of the cutting blade protective cover 22 . With respect to the rear end side is provided with a lifting groove (22a) formed to be inclined upward in an oblique direction,

In addition, the cutting blade protective cover 22 further includes a cover roller 221 fitted into the roller mounting groove and axially coupled to the elevating groove 22a, wherein the cover roller 221 is formed in the elevating groove 22a. and a magnet having a radius corresponding to the distance from the lower end to the upper surface of the tip of the cutting blade 21 and allowing attachment to the cutting blade 21 .

The cover roller 221 is slidably coupled with both ends of the lifting pin 221a in the center of the cover roller 221 being fitted into the lifting groove 22a.

At this time, since the cover roller 221 includes a magnet (the cover roller 221 itself may be made of a magnet or a separate magnet may be embedded), between the metal cutting blade 21 and the cover roller 221 . As the magnetic force acts and the lifting pin 221a descends to the lower end of the lifting groove 22a, the cover roller 221 is attached to the upper surface of the front end of the cutting blade 21 .

Therefore, the cover roller 221 completely blocks the external exposure of the cutting blade 21 together with the cutting blade protective cover 22 to prevent injury caused by the cutting blade 21 .

In addition, when the tape Tb is attached and cut, the cutting blade protective cover 22 moves backward due to the pressure of the tape Tb and at the same time the pressure on the cover roller 221 is made, so that the lifting pin 221a) The tape Tb can be cut to a desired length while the cover roller 221 is spaced apart from the cutting blade 21 by moving upward to the upper end of the elevating groove 22a.

In addition, when the external force applied to the cutting blade protective cover 22 and the cover roller 221 is relieved after the tape Tb is cut, the cover roller 221 is moved back to the cutting blade 21 due to the magnetic force of the cover roller 221 . It is attached to the upper surface, and if the non-cut surface of the attached tape Tb is pressed with the cover roller 221 in this state, the tape Tb can be attached more easily and conveniently.

In the above description of the present invention, a tape cutter has been mainly described with reference to the accompanying drawings, but various modifications, changes and substitutions are possible by those skilled in the art, and these modifications, changes and substitutions fall within the protection scope of the present invention. should be interpreted as

10: main body 11: drum part
11A: rotation guide 12: guide part
12R: guide roller 12A: guide projection
13: first mounting part 14: second mounting part
111: fixed powder 112: brake lever
113: torsion spring 20: cutting means
21: cutting blade 22: cutting blade protective cover
23: compression spring

Claims (4)

a main body including a drum unit on which the roll tape is mounted, a guide unit guiding the end of the tape, and a first mounting unit provided at the end of the guide unit;
Cutting means including a cutting blade coupled to the first mounting part; including,
The drum unit includes a fixed powder having a front-side shaft and a brake lever that has a front-end rotation shaft hinged to the shaft and allows internal pressure of the roll tape mounted on the drum against the paper tube,
The fixed powder includes a rear end side guide groove,
The brake lever includes a rear end guide pin that is slidably coupled to the guide groove,
The drum unit may include a first elastic body that elastically supports the brake lever so as to rotate to the outside.
The method of claim 1,
and the drum unit includes a stopper protruding from an inner circumferential surface of a lower portion of the guide groove to engage the guide pin.
The method of claim 1,
and the drum part includes a separation preventing part protruding from an outer surface of the brake lever.
4. The method according to any one of claims 1 to 3,
The main body includes a second mounting portion provided on the upper portion of the first mounting portion,
The cutting means includes a cutting blade protective cover coupled back and forth in the second mounting portion, and a second elastic body provided in the second mounting portion to elastically support the cutting blade protective cover to advance.

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